SOLUTION: Candice has a 76 average in Physics class going into the final, and that final counts for 40% of the course grade. What must she score on the final to get an 80 in the class?

Algebra.Com
Question 1189465: Candice has a 76 average in Physics class going into the final, and that final counts for 40% of the course grade. What must she score on the final to get an 80 in the class?
Answer by Edwin McCravy(20056)   (Show Source): You can put this solution on YOUR website!
There are several ways to look at it.  Here's one that seems to fit in
with the way people think nowadays:

On a scale of 1 to 10, 

1. the average up to the final, 76, gets a 6, so multiply it by 6.

2. the final exam, X, gets a 4, so multiply it by 4.

3. the course grade desired, 80, gets a 10, so multiply it by 10.

(76)(6) + (4)(X) = (80)(10)

456 + 4X = 800
      4X = 344
       X = 86

Edwin
RELATED QUESTIONS

I have a 77 average in my class which counts for 75% of my grade. What do I need to make... (answered by richwmiller)
If I have an overall average of 85% in my class, and the final exam counts for 40% of my... (answered by jim_thompson5910)
A friend has a 81% average before the final exam for a course. That score includes... (answered by richard1234,richwmiller)
A friend has a 83% average before the final exam for a course. That score includes... (answered by macston)
Before the final exam, a student has test scores of 72,83,65,73, and 62. If the final... (answered by Shana-D77)
if i have an average of 85% on the homework and score a 78% on the Final Exam, what will... (answered by ankor@dixie-net.com)
A Student has test scores of 72, 80, 65, 78, and 60. If the final exam counts as... (answered by Edwin McCravy)
A friend has a 79% average before the final exam for a course. That score includes... (answered by ankor@dixie-net.com)
A friend has a 78% average before the final exam for a course. That score includes... (answered by reviewermath)